Self-oiling wheel.



V. DU'FF. SELF QILING WHEEL. 'APPLIOATIGN FILED En. 2, 1908.

' Patented sept. 15,1908.

A cordance with my invention. gitudinal sectional view of a sleeveforming VERNONDUFF, OF BURNSIDE, PENNSYLVANIA.

SELF-ermite WHEEL.

Specification of Letters Patent.

Patented sept. 15, ieee.

Application filed March 2, 1908. Serial No. l$518,781.

To all whom 'it may conce-rn:

Be it known that I, VERNON DUFF, a citizen of the United States ofAmerica, residing at Burnside, in the county of Clearfield 'and State ofPennsylvania, have invented certain new and useful Improvements inSelf-Oiling Yheels, of which the following is a specification, referencebeing had therein to the accompanying drawing. i

This invention relates to self oiling wheels, and the primary object ofmy invention is, to provide a novel lubricant receptacle forautomatically'supplying a lubricant to the spindle on the end of anaxle.

Another object of this invention is to pro vide a simple and inexpensivelubricator which will form part of the hub of a wheel.

A further object of this invention is to iro vide a novel lubricant bathfor the spindie of an axle, thereby insuring an easy rotation of a wheelupon the axle.

Yith the above and other objects in view, the invention consists in thenovel construction tobe present-ly described and then specically pointedout in the appended claims.

Referring to the drawing forming part of this s ecifica-tiong-Figure 1is a vertical sectiona view of a wheel constructed in 'ac- Fig. 2 is alonpart of my invention. Fig. 3 is an end view of the same. Fig. 4 is aside elevation of a. cap forming part of my invention, and Fig. 5 is anend view of the same.

To put my invention into practice. I provide a hub 1 of a wheel 2 with aperipheral flange 3 upon its outer end, and with an octagonal shapedbore 4. In the bore 1 is secured by screws 5 an Octagon-al shaped sleeve6 having a flange 7l on one end thereof, this flange resting aga-instthe inner end of the hub 1. t

\The sleeve 6 intermediate of its ends is formed with an interiorconcavity S, and the outer end of said sleeve is formed with a pluralityof longitudinally disposed grooves" 9,

the object of which will presentlyiappear. The sleeve 6 is adapted torest upon the spindle 10 of an axle 11, said spindle being retained inthe sleeve-6 by a Cotter pin 12.

Secured to the peripheral flange 3 by bolts 13 andnuts 14 1s a semispherical cap 15l forming a lubricant space or receptacle 16 at the endof the spindle 10. The cap is provided with a port 17 adapted to beclosed .by a pluglS.

The lubricant which I use in connection with my invention is a heavyoil, which is injected into the receptacle 16 through the port 17. Fromthe receptaclel the lubricant is adapted to pass through the grooves 9into the annular concavity 8'of the sleeve 6, and maintains the spindle10 in a lubricant bath.

It is ap )arent from the foregoing description that have devised a noveldevice for thoroughly lubricating the spindle of an axle, whereby awheel will freely revolve thereon.

Having now described my invention, what claim as new, is

A self oiling wheel comprising a wheei hub provided at the outer endwith a flange, a sleeve fitting within the bore of the hub and having a-flange on its inner end abutting against the inner end of the hub, saidsleeve provided approximately midway its length with an interior annulargroove and having a. plurality of interiorlongitudinal grooves leadingfrom the annular groove to the'outer end of the sleeve, means passedthrough the periphery of the hub and engaging the sleeve to hold itagainst longitudinal movement in tile hub, and a cap having a flangefitted with and bolted to the iange on the outer end of the hub, saidcap having a central filling port,`

and a plug normally closing said filling port.

yIn testimony whereof I all ix my signature in the presence of twowitnesses.

' VERNON DUFF. VVit-nesses:

C. E FIGARD, GEO. A. MCCAULLEY,

